On Monday, Microsoft released the last major update for Exchange Server 2019. The aging Exchange Server is set to lose support on Oct. 14, 2025. This final update (2025 H1 Cumulative Update (CU15) ...

Organizations running Exchange Server 2019 won't be getting an H2 cumulative update (CU) this year, a Microsoft announcement this month explained. Microsoft is planning to defer the release of the ...

Microsoft warned that Exchange 2016 and Exchange 2019 will reach the end of support six months from now, on October 14. The Exchange Server Engineering Team also shared guidance for admins who need to ...

Nearly 22,000 Microsoft Exchange servers remain vulnerable to CVE-2026-62911, with public exploit code already available.

Microsoft has released its final cumulative update (CU) for Exchange Server 2019, which means customers need to get ready to upgrade or move to hosted Exchange. Enterprises still hosting on-premises ...

While the next version of Exchange Server is not expected until 2025, the upgrade path to that version will be smoother if administrators plan to migrate to Exchange 2019 soon. Despite the popularity ...

Microsoft tightens rules for old Exchange servers: throttling and blocked emails threaten hybrid environments.

CVE-2026-62911 Exchange Server flaw lets attackers seize all mailboxes with no password: nearly 22,000 servers remain unpatched worldwide three weeks after Microsoft's August fix shipped, 85 percent ...

Microsoft Exchange Server SE CU1 remains without a firm release date as AI-assisted security reviews add to testing and patching work.

EX2013 - this is running in hybrid mode. I do not have any mailboxes on-prem. Everything was migrated to Exchange Online years ago. I don't have any SMTP relays either. Exchange 2013 went EOL last ...